Actually the only one I see Dish showing on their site will not work with DIshComm. However DishComm is really HomePlug. There are a couple HomePlug approved surge protectors.
How often does the 622 needs to be connected to the phone line?
If the phone jack is across the room, can I simply connect it once a month and force it to manually it dial DISH and be done with it for the rest of the month, without incurring $5 fee?